Rheumatoid arthritis affects women more frequently, aged 40 to 70, three times more frequently than men. Bone changes occurring in people with rheumatoid arthritis increase the incidence of fractures in these patients [1]. In the complex fractures of the proximal 3 of the humerus, the treatment of choice is represented by open reduction and osteosynthesis. This method can also be applied minivasively, known as minimally invasive plate osteosynthesis (MIPO)[2,3]. […]